Apparatus for treating waste oils.



H. E. HALLER.

APPARATUS FOR TREATING WASTE OILS.

APPLICATION FILED APR. 11. 1907.

PATENTED MAY 5, 1908.

INVEN'T'DR ATTORNEY TINITED TATES FATENT OFFIQE.

HENRY E. HALLER, OF PITTSBURG, PENNSYLVANIA,

ASSIGNOR TO PITT$BURGH GAGE & SUPPLY COMPANY, OF PITTSBURG, PENNSYLVANIA, A CORPORATION OF PENNSYL-i- VANIA.

Specification of Letters Patent.

Patented May 5, 1908.

Application filed April 11, 1907. Serial No. 367,482.

To all whom it may concern:

Be it known that I, HENRY 1]., HALLER, of

Pittsburg, in the county of Allegheny and of an apparatus for treating waste-oil, in the.

novel features of construction and in the combination of arts all as fully hereinafter described and c aimed.

In the accompanying drawings which illustrate applications of my invention, Figure 1 is a central vertical sectional view of an apparatus embodying my invention; Fig. 2 a horizontal sectional view taken on line 3 8 of Fig. 1; and Fig. 3 a central vertical sectional view of a modified form of my invention.

Referring to the drawing, 1 designates a tank or receptacle of circular form, this tank, however, may be constructed of rectangular form. The tank is provided with an oil-outlet opening 2 and with a water-outlet open- 111 3.

in practice the tank is partially filled with water and oil, the oil resting upon the surface of the water in the main body of he tank as indicated by the drawing. In o v.ating the apparatus it is very important to maintain constant water and oil levels and for this purpose I provide an automatic overflow com prising a pipe 4 extending upwardly from near the bottom of the tank to a chamber 5 located at or near the top of the tank. As shown, a bridge or partition late 6 is provided in the chamber. Cham er 5 is in open communication with outlet 3 through which the excess or Waste Water is passed. If desired the ipe.4 may extend into the cham,

ber 5, sai pipe being cut away on one side to form an extended surface over which the water flows which will answerthe same purpose as the bridge or artition plate 6.

The tank or receptac e 1 is provided with a removable cover 7 adapted to fit on the up-.

per end of the same. This-cover is provided with means for treating the waste-oil preparatory to its introduction'to the tank. In the drawing I have shown two methods of treatment and the respective covers or lids 7 provided with different means for treating the waste-oil.

In the form of Fig. 1, the cover is provided with a heating-chamber 8 preferably comprising two corrugated inclined plates 9 and 10 suitably sup orted by the cover and extending upward y to a ridge 11. Ridge 11 is surmounted by an angular cap 12 similar in form to the form of the heatingchamber. This construction provides an air-space between the ridge of the heating-chamber and the cap. Chamber 8 is preferably heated by steam passing through a steam-coil located within the chamber. Theoil to be treated is passed u on the heating-chamber in thin sheets or lms and in order to accomplish this I provide inclined plates 12 extending downwardly to within a short distance from the inclined sides of the ca 12. 13 designate deflectors for directing t 1e oil and water into or towards the center of the tank. By the employment of the form of apparatus shown by ig. 1, I am enabled by assing the wasteoil onto the heating-chamber in thin sheets or films, to effect a complete separation of the moisture contained in the emulsified waste-oil, from the oil. under this treatment will be deposited on the oil in the tank above the water level and the separated moisture or water will pass down through thetreated oil into the water of the tank. In this form of apparatus as well as the form of Fig. 3, the oil-outlet opening 2 of the tank is guarded by a wall Mover which the The separated oil treated oil must flow before reaching the outlet 2. In ractice the u per ed e of wall 14 should pre erabl be slig tly higher than the upper part of tfie outlet. Some waste-oils require a'somewhat different treatment from that just described and in the form of Fig. 3, the removable cover 7 is provided with a hopper 15 having a strainer 16. The hopper communicates with the tank by means of a pipe 17 extending down into said tank. Pipe 17 has'a second strainer 18 attached to its lower end. The treated oil in this instance after its passage through the means on the removable cover 7 is introduced below the surface of the water in the tank. The oil then passes upwardly through the Water and collects on the surface of the same, the separated water and other foreign substances passing downwardly and then up through the automatic overflow to the water-outlet 3. What I claim is: k 1. An apparatus for treating waste-oil comprising a receptacle adapted to be par tially filled with water, an automatic overflow within the receptacle, and a detachable cover for the receptacle provided with means for heating the waste-011 preparatory to its introduction to the receptacle.

2. An apparatus for treating waste-oil comprisin a receptacle adapted to be partially fille with water, a removable cover for the rece tacle provided with a heating-chamber an means for, spreading the waste-oil into a film or sheet preparatory to its passage onto the heating-chamber.

3. An apparatus for treating waste-oil com rising a tank adapted to be partially fille with water having a water-outlet, an oil-outlet, an automatic overflow in communication with the water-outlet, an oil-overflow wall in front of the oil-outlet, and a detachable cover provided with a heating-chamber and means for spreading the waste-oil into a film or sheet preparatory to its passage into the heating-chamber. v

4. An apparatus for treating waste-oil com rising a tank adapted to be partially fille with water having a water-outlet, an

oil-outlet, an automatic overflow in oommunication with the water-outlet, an oiloverflow wall in front of the oil-outlet, and a removable cover for the tank means for-heating the -waste-o1l preparatory to its introduction to the tank.

provided with 5. An apparatus for treating waste-oil 6. An apparatus for treating waste-oils comprising a rece tacle containin the oil to be treated provi ed with incl ne plates, a heating-chamber having inclined sides, and a cap for the heating-chamber interiposed be tween the chamber and the lower e ges of the inclined plates.

In testimony whereof Iafiix my signature in presence-of two witnesses.

HENRY E. HALLER.

Witnesses W, G. DooLrTTLE', MARGARET HUGHES. 

